Home / 56,871.37-85,317.18-19,435.60

Finding the Fourth Proportional to 56,871.37, 85,317.18 and 19,435.60

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Solution

The fourth proportional to 56,871.37, 85,317.18 and 19,435.60 is: 29,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.37 : 85,317.18 = 19,435.60 : x
  2. Step 2: Convert to fraction form
    56,871.37/85,317.18 = 19,435.60/x
  3. Step 3: Cross multiply
    56,871.37x = 85,317.18 × 19,435.60
  4. Step 4: Simplify right side
    56,871.37x = 1,658,190,583.61
  5. Step 5: Solve for x
    x = 1,658,190,583.61/56,871.37
  6. Step 6: Final answer
    x = 29,156.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.